/* Ranvis Business Solutions
   Defense, government and commercial cybersecurity. Deliberately NOT the Triglot
   treatment: this one is dark-dominant, technical and grid-led, with a signal
   cyan rather than gold, and a mono face for labels so the interface reads like
   an operations console rather than a brochure.

   No em-dashes, no roman numerals, no 01/02/03 index markers (their live site
   uses them and they are dropped), no marquee. Nothing below 16px. */

:root{
  --bg:#080b11;
  --panel:#0e1420;
  --panel-2:#131b2a;
  --line:rgba(120,160,215,.16);
  --line-b:rgba(120,160,215,.32);
  --ink:#e8eef8;
  --muted:#93a3bd;
  --cyan:#34b3ff;
  --cyan-dim:#1d84cc;
  --white:#ffffff;
  --fb:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --fm:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1220px;
  --pad:clamp(20px,5vw,60px);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  margin:0;overflow-x:clip;background:var(--bg);color:var(--ink);
  font:400 17px/1.68 var(--fb);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.wrap-wide{max-width:1560px;margin:0 auto;padding:0 var(--pad)}

h1,h2,h3,h4{font-family:var(--fb);font-weight:600;letter-spacing:-.022em;margin:0;line-height:1.08}
h1{font-size:clamp(38px,5.6vw,74px)}
h2{font-size:clamp(29px,3.7vw,49px)}
h3{font-size:clamp(20px,2vw,26px);letter-spacing:-.012em}
p{margin:0 0 18px}
.lede{font-size:clamp(18px,1.5vw,21px);line-height:1.62;color:var(--muted);max-width:64ch}
.kicker{
  font:500 16px/1 var(--fm);letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);display:flex;align-items:center;gap:12px;margin-bottom:20px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--cyan);flex-shrink:0}

/* ---------- nav ---------- */
.top{position:sticky;top:0;z-index:60;background:rgba(8,11,17,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:15px 0}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none;flex-shrink:0}
.brand .mark{width:34px;height:34px;flex-shrink:0}
.brand b{font:600 19px/1.1 var(--fb);letter-spacing:-.01em;color:var(--white);display:block}
.brand small{display:block;font:500 16px/1 var(--fm);letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);margin-top:5px}
.navlinks{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0}
.navlinks a{text-decoration:none;font-size:16px;color:var(--muted);padding:6px 0;position:relative;white-space:nowrap;transition:color .25s}
.navlinks a:hover,.navlinks a[aria-current="page"]{color:var(--white)}
.navlinks a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--cyan);transition:right .3s cubic-bezier(.2,.7,.3,1)}
.navlinks a:hover::after,.navlinks a[aria-current="page"]::after{right:0}
.burger{display:none;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:26px;height:2px;background:var(--ink);margin:5px 0}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:600 16px/1 var(--fb);padding:16px 28px;border:1px solid transparent;transition:.26s cubic-bezier(.2,.7,.3,1);cursor:pointer}
.btn-cy{background:var(--cyan);color:#04131f;border-color:var(--cyan)}
.btn-cy:hover{background:#5cc4ff;border-color:#5cc4ff;transform:translateY(-2px)}
.btn-line{border-color:var(--line-b);color:var(--ink);background:none}
.btn-line:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- sections ---------- */
.section{padding:clamp(74px,9vw,132px) 0}
.panel{background:var(--panel)}
.panel-2{background:var(--panel-2)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:clamp(560px,88vh,880px);display:flex;align-items:flex-end;overflow:hidden;background:#04070c}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,7,12,.78) 0%,rgba(4,7,12,.5) 40%,rgba(8,11,17,.97) 100%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:74px 74px;opacity:.5}
.hero-inner{position:relative;z-index:2;width:100%;padding:130px 0 clamp(56px,7vw,94px)}
.hero h1{max-width:19ch;color:var(--white)}
.hero .lede{margin-top:24px;max-width:60ch;color:#c3d0e4}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

/* ---------- sector strip ---------- */
.sectors{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sector{padding:clamp(28px,3.2vw,44px);border-right:1px solid var(--line)}
.sector:last-child{border-right:0}
.sector h3{color:var(--white);margin-bottom:14px}
.sector p{color:var(--muted);font-size:16.5px;margin:0}

/* ---------- capability cards ---------- */
.caps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
/* There are exactly FOUR core solutions. auto-fit at minmax(300px) gave three
   across and left a dead cell on the second row, which reads as a missing
   card rather than a design. Four explicit columns, then 2x2, then 1. */
@media(max-width:1180px){.caps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.caps{grid-template-columns:1fr}}
.cap{background:var(--panel);padding:clamp(28px,3.2vw,42px);transition:background .3s}
.cap:hover{background:var(--panel-2)}
.cap .ico{color:var(--cyan);margin-bottom:22px}
.cap h3{color:var(--white);margin-bottom:12px}
.cap p{color:var(--muted);font-size:16.5px;margin:0 0 18px}
.cap ul{list-style:none;margin:0;padding:0;display:grid;gap:9px;border-top:1px solid var(--line);padding-top:18px}
.cap li{font:400 16px/1.5 var(--fm);color:#7f90ab;display:flex;gap:10px}
.cap li::before{content:"";width:5px;height:5px;background:var(--cyan);margin-top:9px;flex-shrink:0}

/* ---------- feature rows ---------- */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,80px);align-items:center}
.feat + .feat{margin-top:clamp(60px,7vw,104px)}
.feat.flip .fimg{order:2}
.fimg{position:relative;border:1px solid var(--line)}
.fimg img{width:100%;aspect-ratio:4/3;object-fit:cover}
.ftext h3{color:var(--white);margin-bottom:16px}
.ftext p{color:var(--muted)}

/* ---------- standards ---------- */
.stds{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.std{background:var(--bg);padding:clamp(26px,3vw,38px)}
.std h3{color:var(--cyan);font-size:clamp(18px,1.7vw,21px);margin-bottom:12px}
.std p{color:var(--muted);font-size:16.5px;margin:0}

/* ---------- ops columns ---------- */
.ops{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.op{background:var(--panel);padding:clamp(30px,3.6vw,48px)}
.op h3{color:var(--white);margin-bottom:22px}
.op ul{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.op li{font-size:17px;color:var(--muted);display:flex;gap:12px;align-items:flex-start}
.op li::before{content:"";width:6px;height:6px;border:1px solid var(--cyan);margin-top:9px;flex-shrink:0;transform:rotate(45deg)}

/* ---------- accordion ---------- */
.acc{border-top:1px solid var(--line)}
.acc details{border-bottom:1px solid var(--line)}
.acc summary{
  cursor:pointer;list-style:none;padding:26px 0;display:flex;align-items:center;
  justify-content:space-between;gap:20px;font:600 clamp(19px,1.9vw,24px)/1.3 var(--fb);color:var(--white);
}
.acc summary::-webkit-details-marker{display:none}
.acc summary .pm{color:var(--cyan);font-size:26px;line-height:1;transition:transform .3s;flex-shrink:0}
.acc details[open] summary .pm{transform:rotate(45deg)}
.acc .body{padding:0 0 26px;color:var(--muted);max-width:74ch;font-size:17px}

/* ---------- form ---------- */
.form-card{background:var(--panel);padding:clamp(28px,3.6vw,48px);border:1px solid var(--line);border-top:2px solid var(--cyan)}
.form-card label{display:block;font:500 16px/1 var(--fm);letter-spacing:.07em;text-transform:uppercase;color:var(--cyan);margin-bottom:9px}
.form-card input,.form-card textarea{width:100%;padding:14px 16px;border:1px solid var(--line-b);background:#070a10;font:400 17px/1.5 var(--fb);color:var(--ink);border-radius:0}
.form-card input:focus,.form-card textarea:focus{outline:2px solid var(--cyan);outline-offset:1px;border-color:transparent}
.form-card .field{margin-bottom:19px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:19px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fmsg{margin-top:16px;font-size:16.5px;display:none}
.fmsg.ok{display:block;color:#57d98a}
.fmsg.err{display:block;color:#ff7a7a}

/* ---------- contact rail ---------- */
.crail{display:grid;gap:26px}
.crow .lab{font:500 16px/1 var(--fm);letter-spacing:.11em;text-transform:uppercase;color:var(--cyan);margin-bottom:8px}
.crow a,.crow span{color:var(--ink);text-decoration:none;font-size:18px}
.crow a:hover{color:var(--cyan)}

/* ---------- footer ---------- */
footer{background:#05080d;border-top:1px solid var(--line);padding:clamp(54px,6vw,80px) 0 30px;font-size:16px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:clamp(28px,4vw,58px);margin-bottom:42px}
footer h4{font:500 16px/1 var(--fm);letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:18px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--white)}
.foot-base{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:16px}

/* ---------- motion, fails VISIBLE ---------- */
.rv{opacity:1;transform:none}
.ready .rv{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.ready .rv.in{opacity:1;transform:none}

@media(max-width:1000px){
  .navlinks{position:fixed;inset:0 0 0 auto;width:min(84vw,340px);background:var(--panel);flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;padding:0 32px;transform:translateX(100%);transition:transform .4s cubic-bezier(.2,.7,.3,1)}
  .navlinks.open{transform:none}
  .navlinks a{font-size:21px;color:var(--ink)}
  .burger{display:block;z-index:70}
  .feat{grid-template-columns:1fr;gap:26px}
  .feat.flip .fimg{order:0}
  .sectors{grid-template-columns:1fr}
  .sector{border-right:0;border-bottom:1px solid var(--line)}
  .sector:last-child{border-bottom:0}
  .ops{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .frow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .ready .rv{opacity:1;transform:none}
}